"Frequentist bound with valid coverage" and "confidence interval for a
partially identified parameter" are both the Imbens-Manski (2004)
equation (6) interval. This name forwards to Bndfre; it is not a
second implementation.
References
Imbens, G. W. and Manski, C. F. (2004). Confidence intervals for partially identified parameters. Econometrica 72(6), 1845-1857, equation (6). doi:10.1111/j.1468-0262.2004.00555.x .
Examples
V <- c(1, 2, 3, 4, 5, 6, 7, 8)
Bnscrf(V, V)
#> $lower
#> [1] 2.802621
#>
#> $upper
#> [1] 6.197379
#>
#> $width
#> [1] 3.394757
#>
#> $c
#> [1] 1.959964
#>
#> $z_one_sided
#> [1] 1.644854
#>
#> $z_two_sided
#> [1] 1.959964
#>
#> $delta
#> [1] 0
#>
#> $n
#> [1] 8
#>
#> $method
#> [1] "Confidence interval for partially identified parameter"
#>
#> attr(,"class")
#> [1] "morie_rich_result" "list"
